Method for preparing buckram



Patented ay 14, 1929.

marten stares saints-1t nannnr, or Becomes, new Yon-a.

METHOD non rnnranrno nnonrtarm No Drawing.

'lhisinvention relates generally to the art of emhroidering, and hasmore particular reference to a method of preparing pattern material forthe embroidery trade capable of being readily disintegrated by theapplication of heat of such temperature that will not adversely altectthe main material to be embroidered.

The invention has for an object the provision of a method of the classmentioned, that is highly eilicient and desirable, and by which patternmaterial as specified, may be mamiiliactured at a low cost.

The invention has for a further object, the provision of a patternmaterial of the said type, "which does not disintegrate at normal roomconditions as fast as similar material made from. other materials andold methods.

For further comprehension of the inven tion, and ot the objects andadvantages thereof, reference will be had to the following descriptionand to the appended claims in which the various novel features of theinvention are more particularly set forth.

The method first makes use of glue sized material such as cotton, linen,hemp or pulp fabrics treated with starch or glue. More specificallystated, commercial buckram may be used though the invention is notlimited to the sole use of this material. Paper or other fiber productsmay also be used instead ct buckram, muriatic acid and water are theother elements necessary to carry out the method.

tie that others may make use of my inven tion, I give the following asone of the most approved tormulas for carrying the same out.

Place in any suitable vessel a mixture of (30 gallons oi water, and 4 to48 pounds of muriatic acid, preferably 12 pounds will be sullicient. Themixture should be at room or lower temperature, approximately from (58F. to 33 F. and then saturate starched material, preferably buclrramtherein. l te move the material and allow it to dry, either naturally orby means 01 a slightly heated conveyor.

Pattern material thus prepared will. keep in good condition for a muchlonger period ct time, than material prepared by old. methods. A greatdrawback to the manufacture and sale of pattern material is that afterseveral days the acid within. the material ruins the material andnecessitates the dicarding of the ruined material and makes itApplication ea January 20, was. Serial No. 248,2?8.

impossible to ship the treated material. to distant embroiderers. Thisforms a bar to the stocking of the material in the trade.

Material made according to the instant disclosure lasts approximatelytwenty times as long as material made according to old methods.Obviously this is a great advantags in the embroidery trade.

Pattern material of the class mentioned has several uses in theembroidery trade. One use consists in designing the pattern material,then basting the same to material to be embroidered. Embroidering isnext done according to the pattern thru both. materials. Upon completiona hot iron is applied io the materials or the material is placed in ahot room and the pattern mate: rial disintegrates at a temperature ofabout 170 which temperature does not aii ect the main material, and thecharred pattern material may be readily removed.

In material made in accordance with the present invention, the acidresist protects the fabric from the action of the acid tor an extendedperiod of time at normal atmospheric temperatures, as the reactionbetween the acid and the resist is very slow. Upon application. of heatto the material, however, the acid reaction is greatly accelerated andboth the acid resist and fabric are rapidly disintegrated.

li hile I have described my invention with some degree at particularity,I realize that in practice various alterations therein may be made. Itherefore reserve the right and privilege of changing the form of thedetails of construction or otherwise altering the arrangement of thecorrelated parts without departing from the spirit or the scope of theappended claims.

Having thus described my invention what I claim as new and desire tosecure by United States Letters Patent is:

1. A process for preparing pattern material for embroidery purposes,comprising the step of sizing fabric material with an acid resist,saturating the sized material with diluted muriatic acid, and thendrying the acid saturated material.

9;. A. process for preparing pattern material ior embroidery purposes,comprising the step 01": sizing fabric material with starch, saturatingthe sized material in a diluted acid, and then allowing the acidsaturated material to dry in the atmosphere at substantially atmospherictemperatures.

ing, comprising fabric material, sizing thereon, inuriatic acid on saidsizing, said acid being slow acting at atmospheric tempera tures, saidacid being adapted to rapidly disintegrate the sizing and fabric at atemperature of substantially 170 F.

In testimony whereof I have ailixed my signature.

SAMUEL H A BABY.

